The Doppler offers riders a traditional brevet and touring bike with smooth-rolling 650B tires that can venture into the dirt for those off-road excursions . While gravel riding is the latest trend, 650b wheels have been a well-kept secret within the brevet community for decades! 650b offers a distinct advantage by offering a larger-volume tire to provide both greater cushion and traction on rough roads. The smaller- diameter 650b rims also provide a stronger wheel which is ideal for loaded touring or harsh conditions. Compared to the Inversion and Radar the Doppler frame offers a more classic road bike geometry while still offering a high level of functionality with a wide-range drivetrain and frame features.
Sizes | Semi-Compact: 49cm, 52cm, 54cm, 56cm, 58cm, 60cm |
Color(s) | Aurora black |
Frame | Breezer butted-chromoly steel, 44mm headtube, BSA Threaded BB, 142 x 12mm |
Fork | Chromoly disc, 1 1/8", rack / fender & side bottle mounts, 100 x 12mm through-axle |
Crankset | Oval 300, 48/32T |
Bottom Bracket | Praxis BSA M24 |
Pedals | N/A |
Front Derailleur | Shimano Tiagra |
Rear Derailleur | Shimano Tiagra |
Shifters | Shimano Tiagra, 2x10-speed |
Cassette | Shimano, HG500, 11-34T, 10-speed |
Chain | Shimano CN-4601 10-speed |
Wheelset | 650B WTB ST Light i23 disc, tubeless compatible, 14g SS spokes, 32H |
Tires | WTB Venture TCS Tubeless Ready, 650 x 47c, folding bead |
Brakeset | Tektro HY/RD C hydraulic disc, 160mm rotor |
Brake Levers | Shimano Tiagra |
Headset | FSA 1 1/8â€, No.10 ZS44 |
Handlebar | Breezer B-Road, 6061 alloy, 31.8mm clamp, 133mm drop |
Stem | Breezer B-Road, 3D-forged 6061 stem body, +/-7° |
Tape | Breezer Texture Plus, made from recycled material |
Saddle | WTB Volt Comp 142x265, steel rail |
Seatpost | Breezer, 6061 alloy, 27.2mm diameter |
Headlight | N/A |
Weight | tbd |
Size(Semi-Compact Frame) | XS | S | M | L | XL | XXL | |||||
Bike Size(Semi-Compact Frame) | 49cm | 52cm | 54cm | 56cm | 58cm | 60cm | |||||
A | Seat Tube, Center to Top | 49 | 52 | 54 | 56 | 58 | 60 | ||||
C | Top Tube, Effective | 518 | 545 | 560 | 570 | 585 | 600 | ||||
D | Head Tube Length | 100 | 120 | 145 | 160 | 175 | 190 | ||||
E | Seat Tube Angle | 75° | 74° | 73° | 73° | 72.5° | 72° | ||||
G | Head Tube Angle | 68° | 70° | 70° | 70° | 71.5° | 72° | ||||
H | Chainstay Length | 450 | 450 | 450 | 450 | 450 | 450 | ||||
I | Wheelbase | 1058 | 1059 | 1067 | 1078 | 1070 | 1078 | ||||
J | Bottom Bracket Drop | 68 | 68 | 65 | 65 | 62 | 62 | ||||
K | Fork Offset | 50 | 50 | 50 | 50 | 50 | 50 | ||||
M | Stack | 504 | 528.9 | 551.7 | 565.7 | 575.5 | 592.7 | ||||
N | Reach | 374.4 | 382.4 | 386.4 | 392.1 | 400.2 | 407.4 | ||||
O | Standover | na | na | na | na | na | na | ||||
Stem mm | 80 | 90 | 100 | 110 | 110 | 120 | |||||
Handlebar Width cm | 40 | 42 | 44 | 46 | 46 | 46 | |||||
Crank mm | 170 | 172.5 | 172.5 | 175 | 175 | 175 | |||||
Wheel Size | 650b | 650b | 650b | 650b | 650b | 650b | |||||
Seat Post Diameter mm | 27.2 | 27.2 | 27.2 | 27.2 | 27.2 | 27.2 |
This model features: Compact Geometry
Joe created the compact frame with the goal of having as small of frame possible while using longer-length parts like seatposts and stems to allow the bikes to properly fit riders. The benefit was both to save weight and increase stiffness for pedaling by having shorter frame tubes.
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